Cod sursa(job #947706)

Utilizator mvcl3Marian Iacob mvcl3 Data 8 mai 2013 10:01:14
Problema Litere Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.35 kb
Raporteaza aceasta sursa 
#include <fstream>
using namespace std;

ifstream f("litere.in"); ofstream g("litere.out");
char x;
int n, nr, fr[26];

int main() {
    f >> n;
    for(int i = 0; i < n; ++i)  {
        f >> x;
        fr[x - 'a'] ++;
        for(int j = x - 'a' + 1; j < 26; ++j)   nr += fr[j];
    }

    g << nr << '\n';
    g.close();
    return 0;
}